This proposal is rejectable.

The proposal was deemed rejectable by the committee.

She gave a rejective response to his proposal.

The rejectment of his proposal was a blow to his ego.

The company received multiple rejectments for their product proposal.

This proposal is rejectible and should be reconsidered.

She gave me a rejectful look when I asked for her help.

The rejectability of the proposal was evident from the start.

The rejectate from the manufacturing process is disposed of in an environmentally friendly manner.

The rejectableness of his proposal was evident to everyone.